Core: Fix unnecessary arg in structs/structs_pass

pythonbpf/helper/bpf_helper_handler.py

@@ -157,17 +157,16 @@ def bpf_printk_emitter(
     if isinstance(call.args[0], ast.JoinedStr):
         args = handle_fstring_print(
             call.args[0],
-            compilation_context.module,
+            compilation_context,
             builder,
             func,
             local_sym_tab,
-            compilation_context.structs_sym_tab,
         )
     elif isinstance(call.args[0], ast.Constant) and isinstance(call.args[0].value, str):
         # TODO: We are only supporting single arguments for now.
         # In case of multiple args, the first one will be taken.
         args = simple_string_print(
-            call.args[0].value, compilation_context.module, builder, func
+            call.args[0].value, compilation_context, builder, func
         )
     else:
         raise NotImplementedError(
@@ -397,7 +396,7 @@ def bpf_perf_event_output_handler(
     ctx_ptr = func.args[0]  # First argument to the function is ctx
 
     data_ptr, size_val = get_data_ptr_and_size(
-        data_arg, local_sym_tab, compilation_context.structs_sym_tab
+        data_arg, local_sym_tab, compilation_context
     )
 
     # BPF_F_CURRENT_CPU is -1 in 32 bit
@@ -446,7 +445,7 @@ def bpf_ringbuf_output_emitter(
         )
     data_arg = call.args[0]
     data_ptr, size_val = get_data_ptr_and_size(
-        data_arg, local_sym_tab, compilation_context.structs_sym_tab
+        data_arg, local_sym_tab, compilation_context
     )
     flags_val = ir.Constant(ir.IntType(64), 0)
 

pythonbpf/helper/helper_utils.py

@@ -10,40 +10,6 @@ from pythonbpf.expr import (
 logger = logging.getLogger(__name__)
 
 
-# NOTE: ScratchPoolManager is now in context.py
-
-
-def get_ptr_from_arg(arg, compilation_context, builder, local_sym_tab):
-    """Helper to get a pointer value from an argument."""
-    # This is a bit duplicative of logic in eval_expr but simplified for helpers
-    # We might need to handle more cases here or defer to eval_expr
-
-    # Simple check for name
-    if isinstance(arg, ast.Name):
-        if arg.id in local_sym_tab:
-            sym = local_sym_tab[arg.id]
-            if isinstance(sym.ir_type, ir.PointerType):
-                return builder.load(sym.var)
-            # If it's an array/struct we might need GEP depending on how it was allocated
-            # For now assume load returns the pointer/value
-            return builder.load(sym.var)
-
-    # Use eval_expr for general case
-    val = eval_expr(
-        None,
-        compilation_context.module,
-        builder,
-        arg,
-        local_sym_tab,
-        compilation_context.map_sym_tab,
-        compilation_context.structs_sym_tab,
-    )
-    if val and isinstance(val[0].type, ir.PointerType):
-        return val[0]
-
-    return None
-
-
 # ============================================================================
 # Argument Preparation
 # ============================================================================
@@ -85,10 +51,7 @@ def get_or_create_ptr_from_arg(
     sz = None
     if isinstance(arg, ast.Name):
         # Stack space is already allocated
-        if arg.id in local_sym_tab:
-            ptr = local_sym_tab[arg.id].var
-        else:
-            raise ValueError(f"Variable '{arg.id}' not found")
+        ptr = get_var_ptr_from_name(arg.id, local_sym_tab)
     elif isinstance(arg, ast.Constant) and isinstance(arg.value, int):
         int_width = 64  # Default to i64
         if expected_type and isinstance(expected_type, ir.IntType):
@@ -345,6 +308,22 @@ def _is_char_array(ir_type):
     )
 
 
+def get_ptr_from_arg(arg, func, compilation_context, builder, local_sym_tab):
+    """Evaluate argument and return pointer value"""
+
+    result = eval_expr(func, compilation_context, builder, arg, local_sym_tab)
+
+    if not result:
+        raise ValueError("Failed to evaluate argument")
+
+    val, val_type = result
+
+    if not isinstance(val_type, ir.PointerType):
+        raise ValueError(f"Expected pointer type, got {val_type}")
+
+    return val, val_type
+
+
 def get_int_value_from_arg(arg, func, compilation_context, builder, local_sym_tab):
     """Evaluate argument and return integer value"""
 

pythonbpf/helper/printk_formatter.py

@@ -9,8 +9,9 @@ from pythonbpf.helper.helper_utils import get_char_array_ptr_and_size
 logger = logging.getLogger(__name__)
 
 
-def simple_string_print(string_value, module, builder, func):
+def simple_string_print(string_value, compilation_context, builder, func):
     """Prepare arguments for bpf_printk from a simple string value"""
+    module = compilation_context.module
     fmt_str = string_value + "\n\0"
     fmt_ptr = _create_format_string_global(fmt_str, func, module, builder)
 
@@ -20,11 +21,10 @@ def simple_string_print(string_value, module, builder, func):
 
 def handle_fstring_print(
     joined_str,
-    module,
+    compilation_context,
     builder,
     func,
     local_sym_tab=None,
-    struct_sym_tab=None,
 ):
     """Handle f-string formatting for bpf_printk emitter."""
     fmt_parts = []
@@ -41,13 +41,13 @@ def handle_fstring_print(
                 fmt_parts,
                 exprs,
                 local_sym_tab,
-                struct_sym_tab,
+                compilation_context.struct_sym_tab,
             )
         else:
             raise NotImplementedError(f"Unsupported f-string value type: {type(value)}")
 
     fmt_str = "".join(fmt_parts)
-    args = simple_string_print(fmt_str, module, builder, func)
+    args = simple_string_print(fmt_str, compilation_context, builder, func)
 
     # NOTE: Process expressions (limited to 3 due to BPF constraints)
     if len(exprs) > 3:
@@ -57,10 +57,10 @@ def handle_fstring_print(
         arg_value = _prepare_expr_args(
             expr,
             func,
-            module,
+            compilation_context.module,
             builder,
             local_sym_tab,
-            struct_sym_tab,
+            compilation_context.struct_sym_tab,
         )
         args.append(arg_value)
 

pythonbpf/structs/structs_pass.py

@@ -22,7 +22,7 @@ def structs_proc(tree, compilation_context, chunks):
     for cls_node in chunks:
         if is_bpf_struct(cls_node):
             logger.info(f"Found BPF struct: {cls_node.name}")
-            struct_info = process_bpf_struct(cls_node, compilation_context)
+            struct_info = process_bpf_struct(cls_node)
             structs_sym_tab[cls_node.name] = struct_info
 
     return structs_sym_tab
@@ -35,7 +35,7 @@ def is_bpf_struct(cls_node):
     )
 
 
-def process_bpf_struct(cls_node, compilation_context):
+def process_bpf_struct(cls_node):
     """Process a single BPF struct definition"""
 
     fields = parse_struct_fields(cls_node)